Triangles ? abc and ? def are similar. find the lengths of the sides of ? def, if ab=2 cm, bc=3 cm, ca=4 cm, de=1.5 cm.

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums, 28 play drums, 18 play the guitar. what is the probability that the applicant who gets the job plays drums or guitar?

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.